7226127720 has 256 divisors, whose sum is σ = 27585216000. Its totient is φ = 1648263168.

The previous prime is 7226127703. The next prime is 7226127743. The reversal of 7226127720 is 277216227.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6266664 + ... + 6267816.

It is an arithmetic number, because the mean of its divisors is an integer number (107754750).

Almost surely, 2^7226127720 is an apocalyptic number.

7226127720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7226127720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13792608000).

7226127720 is an abundant number, since it is smaller than the sum of its proper divisors (20359088280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7226127720 is a wasteful number, since it uses less digits than its factorization.

7226127720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 7226127720 is about 85006.6333882245. The cubic root of 7226127720 is about 1933.3116936407.

The spelling of 7226127720 in words is "seven billion, two hundred twenty-six million, one hundred twenty-seven thousand, seven hundred twenty".